OregonFlora species comparison

palmate;

leaflets 3, elliptic to oblong or obovate, 8–35 × 5–15 mm, bases cuneate;

margins serrate proximally, obscurely denticulate distally;

veins thickened;

tips usually rounded or retuse, rarely acute;

surfaces glabrous;

petioles 10–130 mm;

petiolules ~0.5 mm;

stipules ovate-lanceolate, 10–15 mm;

margins entire, sometimes ciliate;

tips acuminate.

palmate;

leaflets 3, obovate to elliptic-lanceolate, 22–28 × 6–8 mm, bases cuneate;

margins denticulate;

lateral veins prominent; ± parallel;

tips acute, truncate, or retuse, mucronate;

surfaces glabrous or with scattered hairs;

petioles 8–10 mm;

petiolules ? 1 mm;

stipules oblanceolate, 9–15 mm;

margins entire;

tips acuminate or cuspidate.

axillary or terminal, 10–30-flowered; ovoid becoming subglobose, 7–22 × 5–20 mm;

involucres a narrow, membranous, dentate rim; ~0.5 mm;

bracteoles linear or cup-shaped; ? 1 mm.

axillary or terminal, 20–80-flowered, usually ovoid-cylindrical, sometimes globose, 12–20 × ~13 mm;

involucres absent;

bracteoles reduced to fringe of red setae.

25–120 mm.

20–50 mm.

erect but becoming reflexed, 0.5–6 mm.

reflexed, 0.3–0.6 mm.

6–13 mm;

calyces broadly campanulate, 5–11 mm, glabrous;

veins 10;

tubes 1–5 mm;

lobes elliptic to linear, unequal;

margins hyaline, markedly ciliate, dentate or pectinate; sinuses narrow;

orifices open;

corollas 5–13 mm, white, pink, or purple;

banners broadly ovate, 6–13 × 4–7 mm;

tips rounded, apiculate.

7–8 mm;

calyces campanulate, 2–2.5 mm, glabrous;

veins 5;

tubes 0.8–1 mm;

lobes deltate, unequal, 0.6–0.9 mm; abaxial linear; adaxial reduced; ½ length of abaxial;

orifices open;

corollas 5–6 mm; golden yellow becoming brown;

banners persistent, obovate or boat-shaped, 4–4.5 × 2.4–2.6 mm;

tips emarginate.

longitudinally dehiscent; ovoid, 5–10 mm; < 2 × as long as calyces; short-stipitate.

oblong, 3–3.5 mm; ? calyces, stipitate.

1–2; ovoid, 2.5–3 mm, brown, mottled; smooth.

1; ovoid, 1–1.2 mm, pale yellow-green; smooth; glossy.

=16.

=14, 16.